PC28F640J3D75A NUMONYX, PC28F640J3D75A Datasheet - Page 49

• Manufacturer Part Number: PC28F640J3D75A
• Description: IC FLASH 64MBIT 75NS 64EZBGA
• Manufacturer: NUMONYX

Specifications of PC28F640J3D75A

• Format - Memory: FLASH
• Memory Type: FLASH
• Memory Size: 64M (8Mx8, 4Mx16)
• Speed: 75ns
• Interface: Parallel
• Voltage - Supply: 2.7 V ~ 3.6 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-TBGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 875776; 875776; PC28F640J3D75 875776

Numonyx™ Embedded Flash Memory (J3 v. D)
12.0
Figure 21: Write to Buffer Flowchart
November 2007
308551-05
Flow Charts
- Fill write buffer up to word count
- Address = within buffer range
- Data = user data
- Perform read operation
- Read Ready Status on signal SR7
- Address = block address
- Data = word count minus 1
(Valid range = 0x00 to 0x1F)
Check Buffer Status
Full Status Register
- Write 0xE8
- Block Address
- Write 0xD0
- Block address
Register (SR)
Word Count
Read Status
Load Buffer
(if desired)
SR7 = 1?
SR7 = 1?
Confirm
Check
Setup
Start
End
Yes
Yes
No
No
Datasheet
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